Invisible heart mug



FIG. 1 is a rear perspective view of an invisible heart mug showing our new design;

FIG. 2 is a front perspective view thereof;

FIG. 3 is a bottom front perspective view thereof;

FIG. 4 is a bottom rear perspective view thereof;

FIG. 5 is a front view thereof;

FIG. 6 is a rear view thereof;

FIG. 7 is a right side view thereof;

FIG. 8 is a left side view thereof;

FIG. 9 is a top view thereof;

FIG. 10 is a bottom view thereof;

FIG. 11 is a top view thereof having liquid inside;

FIG. 12 is a top view thereof having a small amount of liquid inside; and,

FIG. 13 is a top view thereof having almost no liquid left inside. 

CLAIM The ornamental design for an invisible heart mug, as shown. 